Dealing with comfort disruption
Use the following list to find and remedy any heating or
hot water problems.
Action
Cause
Symptom
Check and replace blown fuses.
Circuit or main MCB tripped.
Low hot water temperature or a lack of
hot water.
Check and replace any blown circuit and
main fuses.
Heat pump and immersion heater do not
heat.
Reset the earth circuit-breaker, if the earth
circuit-breaker trips repeatedly, call an
electrician.
Possible earth circuit-breaker tripped.
Set the switch to 1.
Switch(SF1) set in 0 mode.
Wait a few hours and check if the hot
water temperature rises.
Large hot water demand.
Adjust the start temperature setting in
menu 1.2.
Too low start temperature setting on the
control system.
Reset the earth circuit-breaker, if the earth
circuit-breaker trips repeatedly, call an
electrician.
Possible earth circuit-breaker tripped.
Low room temperature.
Check and replace any blown circuit and
main fuses.
Heat pump and immersion heater do not
heat.
Adjust the setting.
Incorrect setting of "Curve slope", "Heating
curve, offset" and/or "Cooling curve, off-
set".
Check and replace blown fuses.
Circuit or main MCB tripped.
Change operating mode to ”Auto” or
"AutoK".
Heat pump in incorrect operating mode
”Hot water” or "Cooling".
Switch off one/several of the power con-
sumers.
The current limiter has restricted the cur-
rent because many power consumers are
being used in the property.
Adjust the setting.
Incorrect setting of "Curve slope", "Heating
curve, offset" and/or "Cooling curve, off-
set".
High room temperature.
Change operating mode to ”AutoK”.
Heat pump in incorrect operating mode.
Adjust the settings. Check menu 2.2.1,
2.2.2 and 8.2.4.
Incorrect settings for cooling.
Wait 30 minutes and check if the com-
pressor starts.
Minimum time between compressor starts,
alternatively time after power switch on
not achieved.
The compressor does not start.
See section ”Alarms”.
Alarm tripped.
Activate operating mode ”Only additional
heat”.
Alarm cannot be reset.
Check and replace any blown circuit and
main fuses.
Display not lit.
Check that the circuit breaker to the in-
door unit is not off.
Check that the switch (SF1) is in normal
position (1).
NIBE™ SPLIT ACVM 270
16
For Home Owners
Dealing with comfort disruption
Summary of Contents for ACVM 270
Page 2: ...LEK LEK 1 2 LEK LEK 7 LEK 5 6 LEK 3 4 LEK LEK LEK LEK AMS 10 8 LEK LEK AMS 10 12 ...
Page 67: ...67 NIBE SPLIT ACVM 270 Miscellaneous Electrical circuit diagram ...
Page 68: ...NIBE SPLIT ACVM 270 68 Miscellaneous Electrical circuit diagram ...
Page 69: ...69 NIBE SPLIT ACVM 270 Miscellaneous Electrical circuit diagram ...
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